3.9=8.47+x

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Solution for 3.9=8.47+x equation: 



3.9=8.47+x

We move all terms to the left:

3.9-(8.47+x)=0

We add all the numbers together, and all the variables

-(x+8.47)+3.9=0

We get rid of parentheses

-x-8.47+3.9=0

We add all the numbers together, and all the variables

-1x-4.57=0

We move all terms containing x to the left, all other terms to the right

-x=4.57

x=4.57/-1

x=-4+0.57/1

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